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09_SpringCloud_Zuul路由网关

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2019-12-08 / 0 评论 / 0 点赞 / 13,939 阅读 / 5,716 字 / 正在检测是否收录...
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09_SpringCloud_Zuul路由网关

Zuul概述

github资料

img

可以从图上看到,Zuul主要就是API Gateway那块,言下之意就是所有的访问必须要经过API Gateway才能访问到微服务;

  • Zuul包含了对请求的路由和过滤两个最主要的功能:

  • 其中路由功能负责对外部请求转发到具体的微服务实例上,是实现外部访问统一入口的基础;

  • 而过滤器功能则负责对请求的处理过程进行干预,是实现请求校验、服务聚合等功能的基础;

  • Zuul和Eureka进行整合,将Zuul自身注册为Eureka服务治理下的应用,同时从Eureka中获得其他微服务的信息,也即以后的访问微服务都是通过Zuul跳转后获得的;

注意:Zuul服务最终还是会注册进Eureka;

Zuul提供=代理+路由+过滤三大功能;

Zuul路由基本配置

  • 新建microservicecloud-zuul-gateway-9527项目

  • pom.xml

    • 修改部分:

      <!-- Zuul路由网关相关依赖 -->
      <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-eureka</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-zuul</artifactId>
      </dependency>
      
    • 完整内容:

      <?xml version="1.0" encoding="UTF-8"?>
      <project xmlns="http://maven.apache.org/POM/4.0.0"
               xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
               xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
          <parent>
              <artifactId>microservicecloud</artifactId>
              <groupId>top.tomxwd</groupId>
              <version>1.0-SNAPSHOT</version>
          </parent>
          <modelVersion>4.0.0</modelVersion>
      
          <artifactId>microservicecloud-zuul-gateway-9527</artifactId>
      
          <dependencies>
              <dependency>
                  <groupId>top.tomxwd</groupId>
                  <artifactId>microservicecloud-api</artifactId>
                  <version>${project.version}</version>
              </dependency>
              <!-- Zuul路由网关相关依赖 -->
              <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-eureka</artifactId>
              </dependency>
              <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-zuul</artifactId>
              </dependency>
              <!-- actuator监控以及信息配置 -->
              <dependency>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-starter-actuator</artifactId>
              </dependency>
              <!-- Hystrix断路器相关依赖 -->
              <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-hystrix</artifactId>
              </dependency>
              <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-config</artifactId>
              </dependency>
              <!-- 内嵌jetty容器 -->
              <dependency>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-starter-jetty</artifactId>
              </dependency>
              <dependency>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-starter-web</artifactId>
              </dependency>
              <dependency>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-starter-test</artifactId>
              </dependency>
              <!-- 热部署 -->
              <dependency>
                  <groupId>org.springframework</groupId>
                  <artifactId>springloaded</artifactId>
              </dependency>
              <dependency>
                  <groupId>org.springframework.boot</groupId>
                  <artifactId>spring-boot-devtools</artifactId>
              </dependency>
          </dependencies>
      
      </project>
      
  • application.yaml

    server:
      port: 9527
    
    spring:
      application:
        name: microservicecloud-zuul-getway
    
    eureka:
      client:
        service-url:
          defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/
      instance:
        instance-id: getaway-9527.com
        prefer-ip-address: true
    
    info:
      app.name: tomxwd-microservicecloud
      company.name: www.tomxwd.top
      build.artifactId: $project.artifactId$
      bulid.version: $project.version$
    
  • hosts修改

    • 127.0.0.1 myzuul.com
  • 主启动类Zuul_9527_StartSpringCloudApp,主要是加上@EnableZuulProxy注解

    @SpringBootApplication
    @EnableZuulProxy
    public class Zuul_9527_StartSpringCloudApp {
    
        public static void main(String[] args) {
            SpringApplication.run(Zuul_9527_StartSpringCloudApp.class, args);
        }
    
    }
    
  • 启动

    • Eureka集群启动
    • microservicecloud-provider-dept-8001
    • 一个路由Zuul
      • 可以到Eureka网址查看注册信息
  • 测试

Zuul路由访问映射规则

  • 修改工程microservicecloud-zuul-gateway-9527

  • 代理名称

    • application.yaml

      • 修改部分:

        zuul:
          routes:
            mydept.serviceId: microservicecloud-dept
            mydept.path: /mydept/**
        
      • 完整内容:

        server:
          port: 9527
        
        spring:
          application:
            name: microservicecloud-zuul-getway
        
        eureka:
          client:
            service-url:
              defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/
          instance:
            instance-id: getaway-9527.com
            prefer-ip-address: true
        
        
        info:
          app.name: tomxwd-microservicecloud
          company.name: www.tomxwd.top
          build.artifactId: $project.artifactId$
          bulid.version: $project.version$
        zuul:
          routes:
            mydept.serviceId: microservicecloud-dept
            mydept.path: /mydept/**
        

        修改之前我们访问的是http://myzuul.com:9527/microservicecloud-dept/dept/get/2,修改之后我们访问http://myzuul.com:9527/mydept/dept/get/2即可;

    • 此时存在的问题

      • 用原来真实的路径也可以访问得到服务
  • 原真实服务名忽略

    • application.yaml

      • 修改部分:

        zuul:
        	ignored-services: microservicecloud-dept
        
    • 如果是单个,可以直接写应用名来进行ignored-services,多个可以用"*"

      • 修改部分:

        zuul:
        	ignored-services: "*"
        
  • 设置统一公共前缀

    所有的服务前面都要加上/tomxwd;

  • 最后application.yaml文件修改

    server:
      port: 9527
    
    spring:
      application:
        name: microservicecloud-zuul-getway
    
    eureka:
      client:
        service-url:
          defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/
      instance:
        instance-id: getaway-9527.com
        prefer-ip-address: true
    
    
    info:
      app.name: tomxwd-microservicecloud
      company.name: www.tomxwd.top
      build.artifactId: $project.artifactId$
      bulid.version: $project.version$
    zuul:
      routes:
        mydept.serviceId: microservicecloud-dept
        mydept.path: /mydept/**
      ignored-services: "*"
      prefix: /tomxwd
    #  ignored-services: microservicecloud-dept
    
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